Multiformat SDTV Video Decoder with Fast Switch Overlay Support ADV7184 Digital output formats (8-bit or 16-bit) FEATURES ITU-R BT.656 YCrCb 4:2:2 output + HS, VS, and FIELD Multiformat video decoder supports NTSC (J/M/4.43), 0.5 V to 1.6 V analog signal input range PAL (B/D/G/H/I/M/N), SECAM Differential gain: 0.5% typical Integrates four 54 MHz, 10-bit ADCs Differential phase: 0.5 typical SCART fast blank support Programmable video controls Clocked from a single 28.63636 MHz crystal Peak white/hue/brightness/saturation/contrast Line-locked clock-compatible (LLC) Integrated on-chip video timing generator Adaptive Digital Line Length Tracking (ADLLT), signal Free-run mode (generates stable video output with no input) processing, and enhanced FIFO management give VBI decode support for close captioning (including Gemstar mini-TBC functionality 1/2 (XDS)), WSS, CGMS, teletext, VITC, VPS 5-line adaptive comb filters Power-down mode Proprietary architecture for locking to weak, noisy, and 2 2-wire serial MPU interface (I C compatible) unstable video sources such as VCRs and tuners 3.3 V analog, 1.8 V digital core, 3.3 V input/output supply Subcarrier frequency lock and status information output Industrial temperature grade: 40C to +85C Integrated automatic gain control (AGC) with adaptive peak 80-lead, Pb-free LQFP white mode Macrovision copy protection detection APPLICATIONS Chroma transient improvement (CTI) Digital noise reduction (DNR) High end DVD recorders Multiple programmable analog input formats Video projectors CVBS (composite video) HDD-based PVRs/DVDRs Y/C (S-video) LCD TVs YPrPb (component) (VESA, MII, SMPTE, and BETACAM) Set-top boxes 12 analog video input channels Security systems Integrated antialiasing filters Digital televisions Programmable interrupt request output pin AVR receivers Automatic NTSC/PAL/SECAM identification GENERAL DESCRIPTION The ADV7184 integrated video decoder automatically detects and AGC and clamp-restore circuitry allow an input video signal converts standard analog baseband television signals compatible peak-to-peak range of 0.5 V to 1.6 V. Alternatively, these can be with worldwide NTSC, PAL, and SECAM standards into bypassed for manual settings. 4:2:2 component video data compatible with 16- or 8-bit CCIR The fixed 54 MHz clocking of the ADCs and datapath for all 601/CCIR 656. modes allows very precise, accurate sampling and digital filtering. The advanced, highly flexible digital output interface enables The line-locked clock output allows the output data rate, timing performance video decoding and conversion in line-locked, signals, and output clock signals to be synchronous, asynchronous, clock-based systems. This makes the device ideally suited for a or line locked even with 5% variation in line length. The output broad range of applications with diverse analog video character- control signals allow glueless interface connections in most istics, including tape-based sources, broadcast sources, security applications. The ADV7184 modes are set up over a 2-wire, 2 and surveillance cameras, and professional systems. serial, bidirectional port (I C compatible). The accurate 10-bit ADC provides professional quality video SCART and overlay functionality are enabled by the ability of performance and is unmatched. This allows true 8-bit the ADV7184 to process CVBS and standard definition RGB resolution in the 8-bit output mode. signals simultaneously. Signal mixing is controlled by the fast blank pin. The ADV7184 is fabricated in a 3.3 V CMOS process. The 12 analog input channels accept standard composite, S-video, Its monolithic CMOS construction ensures greater functionality and component video signals in an extensive number of with lower power dissipation. It is packaged in a small, Pb-free, combinations. 80-lead LQFP. Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20052007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ADV7184 TABLE OF CONTENTS Features .............................................................................................. 1 Global Status Registers .............................................................. 23 Applications....................................................................................... 1 Standard Definition Processor (SDP).......................................... 24 General Description ......................................................................... 1 SD Luma Path ............................................................................. 24 Revision History ............................................................................... 3 SD Chroma Path......................................................................... 24 Introduction ...................................................................................... 4 Sync Processing .......................................................................... 25 Analog Front End......................................................................... 4 VBI Data Recovery..................................................................... 25 Standard Definition Processor (SDP)........................................ 4 General Setup.............................................................................. 25 Functional Block Diagram .............................................................. 4 Color Controls............................................................................ 28 Specifications..................................................................................... 5 Clamp Operation........................................................................ 30 Electrical Characteristics............................................................. 5 Luma Filter .................................................................................. 31 Video Specifications..................................................................... 6 Chroma Filter.............................................................................. 34 Analog Specifications................................................................... 6 Gain Operation........................................................................... 35 Thermal Specifications ................................................................ 7 Chroma Transient Improvement (CTI) .................................. 39 Timing Specifications .................................................................. 7 Digital Noise Reduction (DNR) and Luma Peaking Filter... 39 Timing Diagrams.......................................................................... 8 Comb Filters................................................................................ 40 Absolute Maximum Ratings............................................................ 9 AV Code Insertion and Controls ............................................. 43 Package Thermal Performance................................................... 9 Synchronization Output Signals............................................... 45 ESD Caution.................................................................................. 9 Sync Processing .......................................................................... 53 Pin Configuration and Function Descriptions........................... 10 VBI Data Decode ....................................................................... 53 2 Analog Front End ........................................................................... 12 I C Interface ................................................................................ 60 Analog Input Muxing ................................................................ 13 Standard Detection and Identification.................................... 62 2 Manual Input Muxing................................................................ 15 I C Readback Registers.............................................................. 64 XTAL Clock Input Pin Functionality....................................... 16 Pixel Port Configuration ............................................................... 79 28.63636 MHz Crystal Operation............................................ 16 Pixel PortRelated Controls...................................................... 79 Antialiasing Filters ..................................................................... 16 MPU Port Description................................................................... 80 SCART and Fast Blanking......................................................... 16 Register Accesses........................................................................ 81 Fast Blank Control...................................................................... 17 Register Programming............................................................... 81 2 Global Control Registers ............................................................... 21 I C Sequencer.............................................................................. 81 2 Power-Saving Modes.................................................................. 21 I C Programming Examples ..................................................... 81 2 Reset Control .............................................................................. 21 I C Register Maps ........................................................................... 82 Global Pin Control ..................................................................... 21 User Map ..................................................................................... 82 Rev. 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